148422597X Kubernetes Management Design Patterns [Vohra 2017-01-29] {E559F6BB}

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Chapter 15 ■ Using an HA Master with OpenShiftOpenShiftMaster 1OpenShiftMaster 2Elastic LoadBalancerKubernetesHA MasterURLFigure 15-1. OpenShift HA masterOverviewA typical production level OpenShift Origin cluster would consist of a high-availability master. In thischapter we shall discuss such a high-availability master OpenShift Origin cluster. The stages are as follows:Setting the environmentInstalling the credentialsInstalling the network managerInstalling OpenShift AnsibleConfiguring AnsibleRunning Ansible PlaybookTesting the clusterTesting the HASetting the EnvironmentThe OpenShift cluster we shall create consists of the following EC2 instances.1 Ubuntu instance for OpenShift Ansible2 CentOS 7 for OpenShift Masters1 CentOS 7 for HAProxy1 CentOS 7 for OpenShift Worker1 Centos 7 for etcdCentOS 7 instances may be launched from https://aws.amazon.com/marketplace/pp/B00O7WM7QW.Select a Region and click Continue. In the Launch on EC2:CentOS 7 (x86_64) - with Updates HVM dialogthat appears, select an m3.large or larger EC2 Instance Type. For VPC select EC2 Classic. For Key Pair selecta pre-existing key pair (docker.pem in the example). Click the button Launch With 1-Click. The CentOSinstances are shown in Figure 15-2.336
Chapter 15 ■ Using an HA Master with OpenShiftFigure 15-2. Launching CentoOS instancesLaunch one EC2 instance based on the Ubuntu AMI. The required instances for the OpenShift clusterare shown in Figure 15-3. Additional master, worker and Etcd instances may be added, but we have used theminimum number of instances to define a HA master cluster.Figure 15-3. CentoOS instances for OpenShift clusterThe following software needs to be installed:––Docker on each CoreOS instance––Etcd on the etcd instances––HAProxy on the LoadBalancer instance––Network Manager on each CentOS instance337
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KubernetesManagementDesign Patterns
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Kubernetes Management Design Patter
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■ CONTENTS AT A GLANCE■Part
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■ CONTENTSSetting Up Cluster Para
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■ CONTENTS■Chapter ■ 6: Us
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■ CONTENTSOvercommitting Resou
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■ CONTENTSInstalling OpenShift
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About the Technical ReviewerMassimo
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■ INTRODUCTIONpatterns are lan
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■ INTRODUCTIONIn Chapter 3 we
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CHAPTER 1Kubernetes on AWSKubernete
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Chapter 1 ■ Kubernetes on AWSIn t
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Chapter 1 ■ Kubernetes on AWSUsin
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Chapter 1 ■ Kubernetes on AWSClic
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Chapter 1 ■ Kubernetes on AWSFigu
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Testing the ClusterChapter 1 ■ Ku
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CHAPTER 2Kubernetes on CoreOS on AW
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Chapter 2 ■ Kubernetes on CoreOS
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Customizing the ClusterChapter 2
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Chapter 3 ■ Kubernetes on Google
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PART IIAdministration andConfigurat
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Chapter 4 ■ Using Multiple ZonesS
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Chapter 4 ■ Using Multiple ZonesF
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Chapter 6 ■ Using VolumesPodDocke
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Chapter 6 ■ Using VolumesThe kube
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Chapter 6 ■ Using Volumesvolumes:
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Chapter 6 ■ Using VolumesChange d
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Chapter 7 ■ Using ServicesAnother
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Chapter 7 ■ Using ServicesCreatin
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Chapter 7 ■ Using ServicesSimilar
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Chapter 7 ■ Using ServicesList th
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Chapter 7 ■ Using ServicesFigure
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Chapter 7 ■ Using ServicesInvoke
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Chapter 7 ■ Using ServicesIn addi
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Chapter 8 ■ Using Rolling Updates
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Chapter 9 ■ Scheduling Pods on No
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Chapter 10 ■ Configuring Compute
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Chapter 11 ■ Using ConfigMapsIn t
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CHAPTER 12Using Resource QuotasIn C
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Chapter 12 ■ Using Resource Quota
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Page 323 and 324: CHAPTER 14Configuring LoggingLoggin
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Chapter 16 ■ Developing a Highly
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■ INDEXClusters (cont.)configurat
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■ INDEXKubernetes (cont.)nodes, 6
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■ INDEXRoute 53 service (cont.)de
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148422597X Kubernetes Management Design Patterns [Vohra 2017-01-29] {E559F6BB}

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